What does Exodus chapter 7 mean?
Pharaoh has rejected the Lord's command to release the people of Israel (Exodus 5:1–4). He spitefully made their harsh slavery (Exodus 1:11–14; 2:23) even worse (Exodus 5:15–19). After giving reassurances (Exodus 6), the Lord will begin tying Pharaoh's resistance to catastrophic consequences: the plagues of Egypt (Exodus 3:19–20).Continuing from the prior chapter, the Lord explains that the relationship between Moses, Aaron, and Pharaoh will reflect the one between God, a prophet, and the people. Moses speaks, Aaron transmits the message, and Pharaoh is expected to listen. In this case, the listener is stubborn and resistant. The Lord will prove His own power with a series of catastrophic miracles. This will end with Israel's liberation (Exodus 7:1–5).
Popular culture often depicts Moses as a potent middle-aged speaker, using his charisma and spiritual strength to overcome Pharaoh's grip on Israel. However, Scripture says Moses was intimidated to speak in public (Exodus 4:10; 6:12), so his brother Aaron did most of the talking (Exodus 4:15–16). In addition, Moses may have been middle-aged when he fled Egypt (Exodus 2:15; Acts 7:23), but he was no longer young when he confronted Pharaoh (Acts 7:30). Aaron and Moses were both in their early eighties when they confronted Pharaoh. The brothers are obedient to God and serve as conduits of His power (Exodus 7:6–7).
The first sign given to convince Pharaoh to listen is harmless. Moses and Aaron follow the Lord's instructions (Exodus 4:2–4), turning a staff into a snake. Either by supernatural power or stage magic, Egyptian occultists convince Pharaoh that they can do the same thing. This leads him to ignore the sign—despite the fact that his magicians' serpents are swallowed by the one representing God. This reflects his obstinate, unwilling attitude (Exodus 7:8–13).
This triggers the first of ten plagues brought on the nation of Egypt. Moses and Aaron are told to confront Pharaoh when he goes out to the Nile river in the morning—probably for daily bathing. He is told that God will prove His own power by turning the Nile into blood. This will also affect the pools and stored waters, leaving no surface water untouched. Egyptians will exhaust themselves (Exodus 7:24) trying to find usable water (Exodus 7:14–19).
When the plague strikes, everything happens as one would expect. When water becomes decomposing body fluid, it rots along with the fish who suffocate in it. The Egyptians cannot drink, cook, or bathe in blood. Some suggest the Lord used a natural cause to pollute the river; this is possible, but the effects on stored water make a direct, supernatural cause seem more likely. This miracle demonstrates that the God of Israel has power. It also strikes against belief in Egyptian gods, such as Khnum and Hapi, who supposedly controlled the Nile (Exodus 7:19–21).
As before (Exodus 7:11), Pharaoh's magicians seem to duplicate this feat. Whether supernatural, or an illusion, their work gives Pharaoh an excuse to ignore what has happened. His response is described with a phrase suggesting that he simply does not care—even though his people will suffer. The Egyptian king locks down his obstinate heart and goes home (Exodus 7:22–23).
The people of Egypt are now suffering the same evils they have inflicted on others (Proverbs 5:22; Psalm 7:14–16). Generations ago, Israelite infants were slaughtered in the Nile (Exodus 1:22). Now the river—symbolically—returns that blood to the murderers. Pharaoh cruelly forced Israel to scavenge for a resource that used to be common (Exodus 5:6–9). Now the Egyptians must work hard, foraging for water so they don't die of thirst during an entire week of this terrible situation (Exodus 7:24–25).
Upcoming plagues may overlap with the first; Scripture does not give explicit timelines for most of them. While it's difficult to explain God using a natural means to corrupt the water, it's possible that God uses this first plague as the immediate cause of the next few catastrophes. Dead waters can drive small animals (Exodus 8:2) and insects (Exodus 8:17) ashore. Piles of dead frogs, fish, and rotting pools of blood breed flies (Exodus 8:21). Neglected, under-watered, and dirty animals are subject to disease (Exodus 9:3), as are people trying to survive in such conditions (Exodus 9:8–9). Regardless of what timing or mechanisms He uses, God is the cause of all such events. The people will see that Egypt's so-called gods have no power or influence.